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monetdbd exits due to "Too many open files" error #6635

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monetdb-team opened this issue Nov 30, 2020 · 0 comments
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monetdbd exits due to "Too many open files" error #6635

monetdb-team opened this issue Nov 30, 2020 · 0 comments

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@monetdb-team monetdb-team commented Nov 30, 2020

Date: 2018-08-02 11:12:41 +0200
From: @yzchang
To: Merovingian devs <>
Version: 11.29.7 (Mar2018-SP1)

Last updated: 2018-08-31 13:23:12 +0200

Comment 26583

Date: 2018-08-02 11:12:41 +0200
From: @yzchang

When one tries to establish too many concurrent client connections to monetdbd (e.g. 1000 mclients), acceptConnections() will fail with "Too many open files". Subsequently monetdbd will decide to simply stop working (i.e. exit(0)).

So, it's not a crash, but monetdbd shouldn't exit after such a non-critical error.

Comment 26588

Date: 2018-08-03 13:19:01 +0200
From: MonetDB Mercurial Repository <>

Changeset a0fec1753e6f made by Sjoerd Mullender sjoerd@acm.org in the MonetDB repo, refers to this bug.

For complete details, see https//devmonetdborg/hg/MonetDB?cmd=changeset;node=a0fec1753e6f

Changeset description:

Not all errors are the same: don't exit for transient failures.
This (hopefully) fixes bug #6635.

Comment 26589

Date: 2018-08-08 10:13:21 +0200
From: @sjoerdmullender

With no indication to the contrary, I'm assuming this has been adequately fixed.

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